Another approach would be to use a transient Fact for the "local variable":-

rule "1"
when
#some condition01
then
insertLogical( new MyFact(200) );
end

rule "2"
when
#some condition02
then
insertLogical( new MyFact(300) );
end

rule "3"
when
#some condition03
     MyFact( $v : value )
then
emp.salary=$v+2000
end

Of course if Rule "1" and Rule "2" both inserted an instance of MyFact Rule "3" would activate twice. This can be safe-guarded against by checking for the non-existence of MyFact:-

rule "1"
when
#some condition01
        not MyFact()
then
insertLogical( new MyFact(200) );
end

rule "2"
when
#some condition02
        not MyFact()
then
insertLogical( new MyFact(300) );
end

rule "3"
when
#some condition03
     MyFact( $v : value )
then
emp.salary=$v+2000
end

If however you then needed this to work on, for example different employees, you'd need to associated MyFact to the employee:-

rule "1"
when
$e : Employee( position == "grunt" )
        not MyFact( employee == $e )
then
insertLogical( new MyFact(200, $e) );
end

rule "2"
when
$e : Employee( position == "manager" )
        not MyFact( employee == $e )
then
insertLogical( new MyFact(300) );
end

rule "3"
when
   $e : Employee( position == "grunt" )
     MyFact( $v : value, employee == $e )
then
   modify($e) {
          setSalary( $v+2000)
     }
end

On 5 October 2012 12:46, joy <Kripa_M01@infosys.com> wrote:

Hi

i need local variables in drl file.
it should hold integer/double value.
Setting an integer value to a local variable in some rule and getting that
integer value in some other rule

when
#some condition01
then
local variable=200
end

when
#some condition02
then
local variable =300
end

when
#some condition03
then
emp.salary=localvariable+2000
end

Anyone plz help me to resolve this.

Thank you
Joy

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